Sand laying device for water supply line cushion layer

Abstract

The utility model discloses a water supply line cushion layer sand paving device, which relates to the field of water supply and drainage pipeline construction, and adopts the technical scheme that the water supply line cushion layer sand paving device comprises a truck with a self-unloading function, the truck comprises a frame, a carriage and a dumping mechanism, the rear part of the carriage is hinged with the frame, the dumping mechanism can incline the carriage, and a hopper is detachably arranged at the tail part of the truck. The hopper is positioned below the trunk tail door and is connected with the frame through a mounting frame; a transverse rod is arranged on the mounting frame, a traction frame is arranged on the transverse rod, a material conveying pipe is arranged on the traction frame, and a sand laying auger is rotationally arranged at the lower end part of the material conveying pipe; a discharging pipe is arranged below the hopper, and the outlet end of the discharging pipe extends to the position above the inlet end of the conveying pipe. The utility model has the beneficial effects that the hopper is directly connected with the unloading pipe and the conveying pipe, and the continuous conveying of sandy soil from the carriage to the groove is realized by utilizing the self-unloading function of a truck, so that the manual carrying or secondary transfer link is omitted, the sand paving efficiency is obviously improved, and the construction period is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of water supply and drainage pipeline construction, in particular to a water supply line cushion layer sand laying device. BACKGROUND

[0002] In water supply pipeline laying engineering, sand cushion layer needs to be laid in advance at the bottom of the trench to protect the pipeline and evenly disperse the load. Traditional construction relies on manual or small machinery (excavators, forklifts, etc.) to complete the sand filling operation, which has the following defects:

[0003] 1. Low efficiency of manual sand laying: workers need to carry sand from transport vehicles to the trench, then manually spread and flatten it, which is labor-intensive, time-consuming, and limited by the workers' proficiency, prone to uneven thickness, insufficient density, and other problems, affecting the quality of pipeline installation.

[0004] 2. Poor adaptability of small machinery: excavators or forklifts can mechanize sand transport, but their bucket designs are mainly for excavation or loading and unloading, making it difficult to accurately control the amount of sand spread and uniformity, often requiring repeated scraping or sanding, resulting in complicated processes and limited efficiency improvement. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a water supply line cushion layer sand laying device.

[0006] The technical scheme is as follows: a truck with self-unloading function, the truck includes a frame, a truck box, and a tilting mechanism, the truck box is hinged to the frame at the rear, the tilting mechanism can tilt the truck box, a hopper is detachably arranged at the tail of the truck, the hopper is located below the tail door of the truck box and connected to the frame through a mounting bracket;

[0007] A crossbar is arranged on the mounting bracket, a traction bracket is arranged on the crossbar, a material conveying pipe is arranged on the traction bracket, and a sand laying auger is rotatably arranged at the lower end of the material conveying pipe.

[0008] A discharge pipe is arranged below the hopper, and the outlet end of the discharge pipe extends above the inlet end of the material conveying pipe.

[0009] Preferably, the sand laying auger includes a rotating shaft and two groups of spiral blades fixed on the rotating shaft, and the two groups of spiral blades are oppositely arranged.

[0010] Preferably, the lower end of the traction bracket is rotatably provided with two traveling wheels, one of which is coaxially fixed with a driving sprocket, the side of the sand laying auger close to the driving sprocket is fixed with a driven sprocket, and the driving sprocket and the driven sprocket are connected by a chain.

[0011] Preferably, a discharge auger is rotatably arranged in the discharge pipe, and a driving wheel is rotatably arranged on one side of the hopper, and the driving wheel is coaxially fixed with the discharge auger.

[0012] Preferably, the mounting frame comprises two parallel mounting plates, a plurality of through holes are formed in the mounting plates, and the mounting plates are fixedly connected with the frame through bolts penetrating through the through holes;

[0013] The two mounting plates are fixedly connected through a cross beam, and the hopper and the cross bar are arranged on the cross beam.

[0014] The technical scheme provided by the embodiment of the utility model has the beneficial effects of: 1. Through the direct connection of the hopper, the unloading pipe and the conveying pipe, the continuous conveying of the sand from the truck box to the groove is realized by using the self-unloading function of the truck, the manual carrying or the secondary transportation link is saved, the sand paving efficiency is significantly improved, and the construction period is shortened; 2. The whole process does not need external motor or hydraulic system, and the energy consumption and equipment cost are reduced; 3. Each component can be independently disassembled and detachably connected, the truck can immediately restore the normal transportation function after disassembly, the "one truck with multiple functions" is realized, and the idle equipment cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a use state schematic view of the embodiment of the utility model.

[0016] Fig. 2 It is a whole structure schematic view of the embodiment of the utility model.

[0017] Fig. 3 It is a walking wheel and sand paving auger transmission schematic view of the embodiment of the utility model.

[0018] Fig. 4 It is a mounting frame schematic view of the embodiment of the utility model.

[0019] Among them, the reference signs are: 1, truck;2, hopper;3, mounting frame;4, cross bar;5, traction frame;6, conveying pipe;7, sand paving auger;8, unloading pipe;9, walking wheel;10, driving sprocket;11, driven sprocket;12, chain;13, unloading auger;14, driving wheel;15, mounting plate;16, cross beam. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail in combination with the drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0021] It should be noted that the embodiments in the utility model creation and the features in the embodiments can be combined with each other without conflict.

[0022] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0023] In the description of the utility model, it needs to be understood that the terms "installation", "connection", "connection" should be understood in a broad sense, unless otherwise specified and limited, for example, it can be fixed connection, or detachable connection, or integrated connection, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Example 1

[0025] Referring to Figs. 1 to 4 The utility model provides a water supply line cushion layer sand laying device, including truck 1 with self -discharging function, truck 1 includes frame, car and dump mechanism, the rear part of car is hinged with frame, dump mechanism can make car tilt, the tail of truck 1 is detachably provided with hopper 2, hopper 2 is located below the tail door of car and is connected with frame through mounting bracket 3,

[0026] Horizontal rod 4 is provided on mounting bracket 3, traction frame 5 is equipped on horizontal rod 4, and sand laying auger 7 is rotatably arranged at the lower end of conveying pipe 6 on traction frame 5.

[0027] Horizontal rod 4, mounting bracket 3, hopper 2 and traction frame 5 are detachably connected, after disassembly, the volume of each component is reduced, which is convenient for storage or transportation to different operation sites, especially suitable for equipment scheduling in remote areas or temporary engineering projects, after removing hopper 2 and traction frame 5, truck 1 can quickly restore the normal self -discharging function, without secondary modification, realizing one car multiple use.

[0028] The lower portion of hopper 2 is provided with a discharge pipe 8, and the outlet end of the discharge pipe 8 extends above the inlet end of the conveying pipe 6.

[0029] The hopper 2 is detachably fixed to the tail of the truck 1 through the mounting frame 3, ensuring that the outlet end of the discharge pipe 8 is aligned above the inlet end of the conveying pipe 6, the truck 1 is started and the dumping mechanism is operated to tilt the truck box to unload the sand and soil into the hopper 2;

[0030] The sand and soil in the hopper 2 falls through the discharge pipe 8 below to the inlet end of the conveying pipe 6 and flows downward along the conveying pipe 6 to the sand laying auger 7;

[0031] The truck 1 slowly drives along the pipeline trench, the conveying pipe 6 and the sand laying auger 7 are synchronously moved in the trench by the traction frame 5, and the sand laying auger 7 uniformly lays the sand and soil on the bottom of the trench through rotation to form a cushion layer.

[0032] Through the direct connection of the hopper 2 and the discharge pipe 8, the continuous conveying of the sand and soil from the truck box to the sand conveying pipeline is realized, manual intervention is reduced, and the laying efficiency is significantly improved;

[0033] The hopper 2 is detachably installed at the tail of the truck 1, which not only utilizes the existing self-unloading truck 1 structure, but also facilitates disassembly and maintenance or restoration of the original function of the truck 1, and has high flexibility.

[0034] The sand laying auger 7 includes a rotating shaft and two groups of spiral blades fixed on the rotating shaft, and the two groups of spiral blades are oppositely arranged.

[0035] The two groups of spiral blades respectively push the sand and soil in opposite directions, so that the sand and soil uniformly spreads from the outlet end of the conveying pipe 6 to both sides to cover the bottom of the trench;

[0036] The symmetrical design of the two groups of opposite spiral blades uniformly disperses the sand and soil from the center to both sides, avoiding the problem of unilateral accumulation or thick in the middle and thin on both sides, and improving the flatness of the cushion layer.

[0037] The lower end of the traction frame 5 is rotatably provided with two walking wheels 9, one of which is coaxially fixed with a driving sprocket 10, and the side of the rotating shaft of the sand laying auger 7 close to the driving sprocket 10 is fixed with a driven sprocket 11, and the driving sprocket 10 and the driven sprocket 11 are connected through a chain 12.

[0038] When the truck 1 drives along the pipeline trench, the two walking wheels 9 at the lower end of the traction frame 5 roll in the trench, and one of the walking wheels 9 drives the coaxially fixed driving sprocket 10 to rotate synchronously;

[0039] The driving sprocket 10 transmits power to the driven sprocket 11 on the rotating shaft of the sand laying auger 7 through the chain 12 to drive the rotating shaft and the spiral blades to rotate;

[0040] The driving speed of the truck 1 is directly related to the rolling speed of the walking wheel 9, so that the rotating speed of the sand laying auger 7 is automatically adjusted through the transmission ratio of the chain 12 to ensure that the sand laying speed is synchronized with the movement of the truck 1.

[0041] The driving sprocket 10 and the driven sprocket 11 are connected by the chain 12, so that the power is stably transmitted from the walking wheel 9 to the sand laying auger 7, without external power supply or hydraulic drive, thereby reducing the failure rate.

[0042] The rotation speed of the sand laying auger 7 is naturally matched with the driving speed of the truck 1, avoiding the tedious operation of manually adjusting the rotation speed, and ensuring the uniformity of the sand laying thickness.

[0043] Further, the diameter of the driving sprocket 10 is larger than that of the driven sprocket 11, when the walking wheel 9 drives the driving sprocket 10 to rotate, the chain 12 transmission forces the driven sprocket 11 to rotate at a higher speed, thereby improving the sand laying effect.

[0044] The unloading auger 13 is rotatably arranged in the unloading pipe 8, and the driving wheel 14 is rotatably arranged on one side of the hopper 2, and the driving wheel 14 is coaxially fixed with the unloading auger 13.

[0045] When the truck 1 drives along the ground, the driving wheel 14 on one side of the hopper 2 is in contact with the ground and rolls, driving the unloading auger 13 coaxially fixed therewith to rotate synchronously.

[0046] The unloading auger 13 rotates in the unloading pipe 8, continuously pushing the sand in the hopper 2 to the outlet end of the unloading pipe 8, and the rotation speed of the unloading auger 13 is controlled by adjusting the driving speed of the truck 1, so as to adjust the discharging amount of the sand.

[0047] The sand falls into the inlet end of the conveying pipe 6 through the outlet end of the unloading pipe 8, realizing stable conveying from the hopper 2 to the conveying pipe 6, avoiding sand accumulation or flow interruption.

[0048] The unloading auger 13 is directly driven by the driving wheel 14 rolling friction with the ground, without additional configuration of motor or hydraulic system, thereby reducing energy consumption and equipment cost.

[0049] The rotation speed of the unloading auger 13 is linked with the driving speed of the truck 1, the faster the truck drives, the higher the rotation speed of the auger, and the greater the discharging amount of the sand, realizing dynamic flow adjustment and adapting to different laying requirements.

[0050] The mounting frame 3 includes two parallel mounting plates 15, a plurality of through holes are formed in the mounting plates 15, and the mounting plates 15 are fixedly connected with the vehicle frame by bolts penetrating the through holes;

[0051] The two mounting plates 15 are fixedly connected by the cross beam 16, and the hopper 2 and the cross rod 4 are arranged on the cross beam 16.

[0052] The two parallel mounting plates 15 are fixed with the vehicle frame of the truck 1 by bolts penetrating the through holes thereof, and the position of the mounting plate 15 is adjusted so that the cross beam 16 horizontally extends to a suitable position at the rear of the truck 1.

[0053] The mounting plate 15 is connected with the frame by bolts, utilizes the holes on the frame girder, does not need welding or complicated tools, and is convenient for quickly disassembling the hopper 2 and the accessory parts and restoring the original function of the truck 1.

[0054] In use, the hopper 2 is detachably fixed to the tail of the truck 1 through the mounting rack 3, the outlet end of the unloading pipe 8 is aligned above the inlet end of the conveying pipe 6, the truck 1 is started and the dumping mechanism is operated, the truck box is inclined, and the sand and soil is unloaded into the hopper 2;

[0055] The sand and soil in the hopper 2 falls to the inlet end of the conveying pipe 6 through the unloading pipe 8 below and flows downwards along the conveying pipe 6 to the sand spreading auger 7;

[0056] The truck 1 slowly drives along the pipeline groove direction, the traction frame 5 drives the conveying pipe 6 and the sand spreading auger 7 to synchronously move in the groove, the sand spreading auger 7 uniformly spreads the sand and soil on the bottom of the groove through rotation, and a cushion layer is formed.

[0057] The above only describes the preferred embodiment of the utility model and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A water supply line bedding sand-laying device, comprising a truck (1) with a self-unloading function, the truck (1) comprising a frame, a cargo box and a tipping mechanism, the rear of the cargo box being hinged to the frame, the tipping mechanism being capable of tilting the cargo box, characterized in that, The truck (1) is detachably provided with a hopper (2) at the rear, the hopper (2) being located below the tailgate of the truck bed and connected to the frame via a mounting bracket (3); The mounting frame (3) is provided with a crossbar (4), the crossbar (4) is provided with a traction frame (5), the traction frame (5) is provided with a material conveying pipe (6), and the lower end of the material conveying pipe (6) is rotatably provided with a sand spreading auger (7). The hopper (2) is provided with a discharge pipe (8) below it, and the outlet end of the discharge pipe (8) extends above the inlet end of the conveying pipe (6).

2. The water supply line bedding sand-laying device according to claim 1, characterized in that, The sand-laying auger (7) includes a rotating shaft and two sets of spiral blades fixed on the rotating shaft, with the two sets of spiral blades facing each other.

3. The water supply line bedding sand-laying device according to claim 2, characterized in that, The lower end of the traction frame (5) is rotatably equipped with two traveling wheels (9), one of which is coaxially fixed with a drive sprocket (10). The shaft of the sand-laying auger (7) is fixed with a driven sprocket (11) on the side near the drive sprocket (10). The drive sprocket (10) and the driven sprocket (11) are connected by a chain (12).

4. The water supply line bedding sand-laying device according to claim 1, characterized in that, The unloading pipe (8) is rotatably equipped with an unloading auger (13), and a drive wheel (14) is rotatably equipped on one side of the hopper (2). The drive wheel (14) is coaxially fixed with the unloading auger (13).

5. The water supply line bedding sand-laying device according to claim 3, characterized in that, The mounting bracket (3) includes two parallel mounting plates (15), which have several through holes and are fixedly connected to the vehicle frame by bolts passing through the through holes; The two mounting plates (15) are fixedly connected by a crossbeam (16), and the hopper (2) and the crossbar (4) are both mounted on the crossbeam (16).

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